211265641250166 has 32 divisors (see below), whose sum is σ = 422721055728000. Its totient is φ = 70390253180160.

The previous prime is 211265641250119. The next prime is 211265641250239. The reversal of 211265641250166 is 661052146562112.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 577520785 + ... + 577886483.

It is an arithmetic number, because the mean of its divisors is an integer number (13210032991500).

Almost surely, 2^{211265641250166} is an apocalyptic number.

211265641250166 is an abundant number, since it is smaller than the sum of its proper divisors (211455414477834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211265641250166 is a wasteful number, since it uses less digits than its factorization.

211265641250166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408684.

The product of its (nonzero) digits is 1036800, while the sum is 48.

The spelling of 211265641250166 in words is "two hundred eleven trillion, two hundred sixty-five billion, six hundred forty-one million, two hundred fifty thousand, one hundred sixty-six".